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WILLIAM A. MCINTIRE, OF SPRINGFIELD, MASSACHUSETTS.

Letters Patent No. 63,915, dated April I6, 1867.

l IMPROVEMENT IN MAGHINBSI'OR vMAKING GAR'IRIDGE SHELLS.

TO ALL WHOM IT MAY CONOERN: y

Be it known that I, WILLIAM A. McINTIRE, of Springfield, in the county of Hampden, and State of Massachusetts, have invented a new and useful Machine for Making Cartridge Shells; and I do hereby declare the following to be a full, clear, and exact descriptiono' the same, sufficient to enable one skilled in the art to which the invention appertains to make use of it, reference being had to the accompanying drawings, which form a part of this specification, and in Which- Figure 1 is a. .plan or top view.

Figure 2 is a vertical longitudinal*sectionv on the line z z, fig. 1.

Figure 3 is an end elevation.

Figure 4 is a vertical transverse section on the line y y, g. 1.

The machine is adapted for drawing, trimming, and heading the cartridge shells by a series of 'automatic and consecutive operations.

In the ordinary mode of making a metallic cartridge capsule it is rst cut out of a sheet; the blank thus obtained being a circular disk, is subsequently, by means of die and punch, swaged into the. form of a tube with the bottom end closed; this has to be repeated several times, and the metal annealed between each drawing operation. I take the cartridge shell after the `lest annealing and draw it the last time, trim and head it by successive automatic operations. The shell is put into the upper disk YI., which conveys it to the rst punch D, which forces it through the die K, into the slide Q, Whose motion carries it under the punch E, which forces it into the trimming die. vAs the slide Q goes back after another shell the knife S advances and trims thev edge of the shell, which is forced down by the succeeding shell as the punch E makes another stroke.I `At each stroke.

of the punch E the bottom shell is forced out of the hollow mandrel 'I into a hole in the disk V, which conveys it to the heading device, where the third punch F forces it into the second slide X. Both the other punches (D and E) force the shells by pressure against the bottom or closed end f the shells, but the punch F expels the shell from the slide V by pressure upon its edge, as the shoulder on the punch rests on the edge of the shell,

the latter being longer than the portion of the punch which is introduced into it, leaving a space between the end of the punch and the inside'bottom of the shell. The shell being held in this position, the punch Y is raised by the lever Z, and spreading the closed end of the shelland forming the flanged rim around the base or closed end. The slide X is now retracted, and the shell discharged therefrom by the descending punch G. The shells are carried from place to place automatically and consecutively, no special manipulation being required.

In the drawings, A is the base, and B B B standards of the frame; in the latter is journalled the main shaft from which nearly all the motions ofthe machine are derived. On this shaft are nine cams, which are indicated in the drawings by the letters a, b, c, d, af, g, h, z'. Four 0i` these operate the plungers D, E, F, G; other foul` operate the feeding devices, and one is the header which upsets the closed end of shell and makes the flanged head. The plungers D E slide in sockets in the crdss-pieces I-I H, andthe plungers F Gr in the crosspieces I I. In each case the downward or effective movement of the plunger is due to its cam on the shaft above, and its return movement or retraction is performed by a spring, I. Upon the table K is centred a Wheel, L, which has pockets vl, adapted to receive the copper tubcswhich are to be drawn, trimmed, and headed; this wheel is revolved by a paw]` M, which has a horizontal movement imparted bythe cam I), through the intervention of thc arm N, which is pivoted to the frame, and retracted after its effective stroke by the spring 0. The blank having arrived underV the plunger D, is driven by the descent ofthe latter through the die P, in the table K, and into a pocket of the slide Q, which is then moved by the lever R and com a till the drawn tube is brought under thcplunger E. The cam a is 'a face cam, and at its point of contact with the lever R the latteris furnished with a friction-roller, 9'. The plunger E now descends and drives the tube out of the slidfn. r is a spring to retract the slide Q after its effective motion produced by the cam a. As the slide Q is retracted it brings with it the knife S, which trims oil' the end of the tube as it is revolved by the spindle into which it was pushed by the plunger E. The spindle 'l is revolvedby a cord on the pulley t, and the column of' shells therein vfalls consecutively into the pockets 'u u oi` the Wheel U, which is centred upon the bcd-plate 0F the machine, and revolves by means of the panl V, which is-actnated by thc lever W and cam g. By this revolution of the wheel U, the tube reaches a posit-ion' under the plunger F which is. operated by the cam e, and whose lower end agrees with the desired inside dimensions of the completed shell. The latter, as the plunger F descends, slips upon it and is longer.`

than its socket as the trimmed end of lthe shell rests against the shoulder on the plunger, The plunger F descends and carries the shell out ofthe pocket in the wheel U and into a die in the slide X, where it is held while the header Y ascends and upsets it, as shown in iig. 2, forming the ilanged'head. The header is operated by the lever` Z from the camf. The plunger F is now raised, leaving the complete shell in the slide X, which is then retraeted until the shell comes under the plunger G, which descends and expels it: from the machine.

The slide X is operated by the pivoted lever A', which is moved in one dir/ect-ion by the cani z', and in the otherv by the spring a. The machine may be made te operate under a change of position; the plungers moving hori-` zontally and the pieces being fed from place to place by troughs instead of disks.

Having described my invention, what I claim as new, and desire to secure byLetters Patent, is-

1. The combination of the plunger and die for drawing the shell, the slide or equivalent for delivery ofthe same, and the trimming device for the purpose described.

2.v In combination with the above, I claim the rotating'disk U, and heading device, arranged substantially as described.

To the above specification of my improved machine for making cartridge shells I have signed my hand this 13th day of October, 1866.

WM. A. MCINTIRE.

lVitnesses: V

SoLoN C. KEMON,

EDWARD H. KNIGHT. 

